What is number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction. a)coefficient b)subscript c) molecule d) reactant

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum